What Is an Amniocentesis?
An amniocentesis tests amniotic fluid for genetic disorders and fetal infections. Here's what happens during an amniocentesis.
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Transcript: What Is an Amniocentesis?
A Healthy Pregnancy
During pregnancy, a woman's uterus houses and protects a developing fetus for about 9 months. Within the uterus, the fetus is surrounded by fluid, which in the 2nd and 3rd trimester is produced primarily by fetal urination.What Is Amniotic Fluid?
This fluid, called amniotic fluid, allows the fetus to float and move within the uterus. It also cushions and protects the fetus from injury and helps to maintain a constant temperature in the uterus.Do You Need an Amniocentesis?
Pregnant women who are over 35 or have a family history of genetic disorders may undergo a procedure called an amniocentesis. In this procedure amniotic fluid is used to test for infections, genetic disorders, metabolic problems and fetal lung maturity.During an Amniocentesis
During the procedure, the position of the fetus is first located using ultrasound. Then a long, slender needle is inserted through the skin of the abdomen into a safe location in the uterus and about 1 ounce of amniotic fluid is withdrawn.After an Amnioentesis
Following the procedure, the fetus will be monitored by ultrasound for a brief period. And, the amniotic fluid will be naturally replaced in about 3 to 4 hours.Copyrighted animations provided by Blausen Medical.